glupteba | 24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
19/04/2024, 14:06

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General

Target
24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Size 4.2MB
Sample240419-rel83sec49
SHA256 24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1
MD5 db2f86f571ecd23acdff760266048eb2
SHA1 20d81819908f0e38b41c8070fd2b301e4524420c
SHA512 0b55c35492c38a7815aa805c5e660f67fc085681f6068a2449a0d005171a9db60c29af08d71f209bdea5765919be2ea826c5d38edcc02104d6aebd05e2f78ee5
SSDEEP 98304:zu15A1GiNRFuKfVvdEh8/k6ld6teGU//blllQO5EUt0+BFZRUpdVYd:zaARFuKJWhQkavn//blllQdNaFDGXu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

glupteba discovery dropper evasion loader persistence rootkit upx

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Glupteba payload 20 IoCs

resource	yara_rule
behavioral1/memory/1244-2-0x0000000003F90000-0x000000000487B000-memory.dmp	family_glupteba
behavioral1/memory/1244-3-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/1244-44-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/1244-47-0x0000000003F90000-0x000000000487B000-memory.dmp	family_glupteba
behavioral1/memory/1608-48-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/1608-143-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/1608-168-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-254-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-265-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-268-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-271-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-274-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-276-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-279-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-283-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-286-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-289-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-292-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-294-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba
behavioral1/memory/632-297-0x0000000000400000-0x0000000001DFD000-memory.dmp	family_glupteba

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4508	netsh.exe

Executes dropped EXE 4 IoCs

pid	Process
632	csrss.exe
2236	injector.exe
3348	windefender.exe
3244	windefender.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x0008000000023433-258.dat	upx
behavioral1/memory/3348-263-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/3244-266-0x0000000000400000-0x00000000008DF000-memory.dmp	upx
behavioral1/memory/3244-272-0x0000000000400000-0x00000000008DF000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Manipulates WinMonFS driver. 1 IoCs

Roottkits write to WinMonFS to hide directories/files from being detected.

rootkit evasion

description	ioc	Process
File opened for modification	\??\WinMonFS	csrss.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive	powershell.exe

Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\VBoxMiniRdrDN	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\rss	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
File created	C:\Windows\rss\csrss.exe	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
File created	C:\Windows\windefender.exe	csrss.exe
File opened for modification	C:\Windows\windefender.exe	csrss.exe

Launches sc.exe 1 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
3928	sc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
640	1300	WerFault.exe	88

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3384	schtasks.exe
888	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2592 = "Tocantins Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2142 = "Transbaikal Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-932 = "Coordinated Universal Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-962 = "Paraguay Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-841 = "Argentina Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-104 = "Central Brazilian Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1841 = "Russia TZ 4 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1912 = "Russia TZ 10 Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-271 = "Greenwich Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-391 = "Arab Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-214 = "Pacific Daylight Time (Mexico)"	windefender.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-121 = "SA Pacific Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-332 = "E. Europe Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2062 = "North Korea Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2061 = "North Korea Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-1502 = "Turkey Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-32 = "Mid-Atlantic Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2372 = "Easter Island Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2141 = "Transbaikal Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-371 = "Jerusalem Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-681 = "E. Australia Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2041 = "Eastern Daylight Time (Mexico)"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-352 = "FLE Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-432 = "Iran Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-112 = "Eastern Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-2342 = "Haiti Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2161 = "Altai Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2871 = "Magallanes Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-911 = "Mauritius Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-81 = "Atlantic Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-632 = "Tokyo Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-402 = "Arabic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-32 = "Mid-Atlantic Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-751 = "Tonga Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-2412 = "Marquesas Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1801 = "Line Islands Daylight Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	powershell.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-192 = "Mountain Standard Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-384 = "Namibia Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@tzres.dll,-961 = "Paraguay Daylight Time"	windefender.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\C:\Windows\system32\,@tzres.dll,-1842 = "Russia TZ 4 Standard Time"	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	powershell.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	powershell.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	powershell.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1300	powershell.exe
1300	powershell.exe
1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1040	powershell.exe
1040	powershell.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
1536	powershell.exe
1536	powershell.exe
3244	powershell.exe
3244	powershell.exe
2676	powershell.exe
2676	powershell.exe
2620	powershell.exe
2620	powershell.exe
2384	powershell.exe
2384	powershell.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
632	csrss.exe
632	csrss.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
632	csrss.exe
632	csrss.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
632	csrss.exe
632	csrss.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe
2236	injector.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	powershell.exe
Token: SeDebugPrivilege	1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Token: SeImpersonatePrivilege	1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
Token: SeDebugPrivilege	1040	powershell.exe
Token: SeDebugPrivilege	1536	powershell.exe
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	2676	powershell.exe
Token: SeDebugPrivilege	2620	powershell.exe
Token: SeDebugPrivilege	2384	powershell.exe
Token: SeSystemEnvironmentPrivilege	632	csrss.exe
Token: SeSecurityPrivilege	3928	sc.exe
Token: SeSecurityPrivilege	3928	sc.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 1300	1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	88
PID 1244 wrote to memory of 1300	1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	88
PID 1244 wrote to memory of 1300	1244	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	88
PID 1608 wrote to memory of 1040	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	99
PID 1608 wrote to memory of 1040	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	99
PID 1608 wrote to memory of 1040	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	99
PID 1608 wrote to memory of 2232	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	101
PID 1608 wrote to memory of 2232	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	101
PID 2232 wrote to memory of 4508	2232	cmd.exe	103
PID 2232 wrote to memory of 4508	2232	cmd.exe	103
PID 1608 wrote to memory of 1536	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	104
PID 1608 wrote to memory of 1536	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	104
PID 1608 wrote to memory of 1536	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	104
PID 1608 wrote to memory of 3244	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	106
PID 1608 wrote to memory of 3244	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	106
PID 1608 wrote to memory of 3244	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	106
PID 1608 wrote to memory of 632	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	108
PID 1608 wrote to memory of 632	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	108
PID 1608 wrote to memory of 632	1608	24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe	108
PID 632 wrote to memory of 2676	632	csrss.exe	109
PID 632 wrote to memory of 2676	632	csrss.exe	109
PID 632 wrote to memory of 2676	632	csrss.exe	109
PID 632 wrote to memory of 2620	632	csrss.exe	115
PID 632 wrote to memory of 2620	632	csrss.exe	115
PID 632 wrote to memory of 2620	632	csrss.exe	115
PID 632 wrote to memory of 2384	632	csrss.exe	117
PID 632 wrote to memory of 2384	632	csrss.exe	117
PID 632 wrote to memory of 2384	632	csrss.exe	117
PID 632 wrote to memory of 2236	632	csrss.exe	119
PID 632 wrote to memory of 2236	632	csrss.exe	119
PID 3348 wrote to memory of 1520	3348	windefender.exe	125
PID 3348 wrote to memory of 1520	3348	windefender.exe	125
PID 3348 wrote to memory of 1520	3348	windefender.exe	125
PID 1520 wrote to memory of 3928	1520	cmd.exe	126
PID 1520 wrote to memory of 3928	1520	cmd.exe	126
PID 1520 wrote to memory of 3928	1520	cmd.exe	126

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
"C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell -nologo -noprofile
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 2576
    3⤵
    - Program crash
    PID:640
- C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe
  "C:\Users\Admin\AppData\Local\Temp\24ce1558c06ac29acaca9b8294ec91f231f05834aafe6139e195b0f65c2a91f1.exe"
  2⤵
  - Adds Run key to start application
  - Checks for VirtualBox DLLs, possible anti-VM trick
  - Drops file in Windows directory
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1040
- - C:\Windows\system32\cmd.exe
    C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2232
  - - C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      4⤵
      Modifies Windows Firewall
      PID:4508
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1536
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -nologo -noprofile
    3⤵
    - Drops file in System32 directory
    - Modifies data under HKEY_USERS
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3244
- - C:\Windows\rss\csrss.exe
    C:\Windows\rss\csrss.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Manipulates WinMonFS driver.
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:632
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2676
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:3384
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /delete /tn ScheduledUpdate /f
      4⤵
      PID:4456
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2620
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      4⤵
      Drops file in System32 directory
      Modifies data under HKEY_USERS
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2384
  - - C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
      C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      PID:2236
  - - C:\Windows\SYSTEM32\schtasks.exe
      schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
      4⤵
      Creates scheduled task(s)
      PID:888
  - - C:\Windows\windefender.exe
      "C:\Windows\windefender.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:3348
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1520
      - C:\Windows\SysWOW64\sc.exe
        
        sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
        6⤵
        Launches sc.exe
        Suspicious use of AdjustPrivilegeToken
        
        PID:3928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1300 -ip 1300
1⤵
PID:2196

C:\Windows\windefender.exe
C:\Windows\windefender.exe
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:3244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Scheduled Task/Job

T1053

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_40ipnwfd.waa.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_40ipnwfd.waa.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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injector.exe

Path C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Size 281KB
SHA256 5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1
MD5 d98e33b66343e7c96158444127a117f6
SHA1 bb716c5509a2bf345c6c1152f6e3e1452d39d50d
SHA512 705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5
SSDEEP 3072:qbHszDaOJ8u2HHFIWr6e29kOnK7qFQ8wMii5I7kGvNjzMuszHshoY46bEydJ+dK9:SA3IlIA6e29vngqS8wMmuooh8z+8F
MD5 SHA1 SHA512 SSDEEP

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powershell.exe.log

Path C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 2KB
SHA256 6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69
MD5 3d086a433708053f9bf9523e1d87a4e8
SHA1 b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28
SHA512 931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd
MD5 SHA1 SHA512

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